there is air pressure in the hot water tank of my 5th wheel. when the city water is not connected and I empty the water tank and even when the relief valve is open the pressure is so stong it takes the plug right out of my hand. I don't understand ...
Because some resort have surcharge of power I'm told I should get a surge protector. Where can I buy one and what brand name should I get? I'm from Vancouver Island, Canada.